Răspuns :
420 = 419, 418, 417; (Adaos)
370 = 369, 368, 367; ( Adaos )
290 = 289, 288, 287; (Adaos)
500 = 501 , 502 , 503. (Lipsa)
420=320,220,120...
370=170,270,370... 290=190,390,490...
500=100,200,300...
420 = 419, 418, 417; (Adaos)
370 = 369, 368, 367; ( Adaos )
290 = 289, 288, 287; (Adaos)
500 = 501 , 502 , 503. (Lipsa)
420=320,220,120...
370=170,270,370... 290=190,390,490...
500=100,200,300...